import{mapGetters} from 'vuex'
export default{
  computed:{
  ...mapGetters('m_cart',['total'])  
  },
  watch:{
    total(){
       this.setBadge()
    }
  },
  onShow() {
      this.setBadge()
  },
  methods: {
    setBadge(){
      console.log(this.total);
      uni.setTabBarBadge({
        index: 2,
      text:this.total+''
      })
    }
  }
}